What Can Go Wrong - ZyXEL Communications ZyWALL 110 Handbook
Zywall/usg series security firewalls
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- User manual (1090 pages) ,
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Figure 646 Window 7 > cmd > ping -6 2001:b020:0:71::46
6.3.5 What Can Go Wrong?
If your IPv6 connection is not working, please make sure you enable the WAN1 IPv4 interface. In
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IPv6-in-IPv4, the ZyWALL/USG uses the WAN1 IPv4 interface to forward your 6to4 packets to the
IPv4 network.
In Windows, some IPv6 related tunnels may be enabled by default such as Teredo and 6to4
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tunnels. It may cause your computer to handle IPv6 packets in an unexpected way. It is
recommended to disable those tunnels on your computer.
Chapter 6 Configure IPv6
ZyWALL/USG Series User's Guide
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